how does postgres version upgrade work?

does updgrade only allow one upgrade per day, as yesterday i upgraded and today there is another upgrade possible (which I've just done, actually upgraded for the last 3 days in a row), so now on 17.4.1.054 but we are actually up to V 17.5 now? so do I have to do a "upgrade a day" to get upto the latest? In "project settings" >"infastructure">service versions